"A film called Book of Monsters is obviously going to stand or fall on the quality of its malevolent menagerie and in that respect, Sparke scores very highly, with a number of original, creepy-looking creatures specially created for the film, using practical special effects. He also throws in some old favourites for good measure, with some sharp-teethed garden gnomes that come to life, allowing for a few knowing Gremlins references (gnome in a microwave and so on)..." - http://www.nerdly.co.uk/2018/08/30/frightfest-2018-book-of-monsters-review/